Alarm Mode - Mitsubishi Electric Melservo-J2-JR SERIES Instruction Manual

6. DISPLAY AND OPERATION

6.4 Alarm mode

The current alarm, past alarm history and parameter error are displayed. The lower 2 digits on the display
indicate the alarm number that has occurred or the parameter number in error. Display examples are
shown below.
Name
Current alarm
Alarm history
Parameter error
Functions at occurrence of an alarm
(1) Any mode screen displays the current alarm.
(2) The other screen is visible during occurrence of an alarm. At this time, the decimal point in the fourth
digit flickers.
(3) For any alarm, remove its cause and clear it in any of the following methods:
(a) Switch power OFF, then ON.
(b) Press the "SET" button on the current alarm screen.
(c) Turn on the alarm reset (RES) signal (for clearable alarms, refer to Section 9.2.1).
(4) Use parameter No. 16 to clear the alarm history.
Display
Indicates no occurrence of an alarm.
Indicates the occurrence of alarm 33 (overvoltage).
Flickers at occurrence of the alarm.
Indicates that the last alarm is alarm 50 (overload 1).
Indicates that the second alarm in the past is alarm 33 (overvoltage).
Indicates that the third alarm in the past is alarm 10 (undervoltage).
Indicates that the fourth alarm in the past is alarm 31 (overspeed).
Indicates that there is no fifth alarm in the past.
Indicates that there is no sixth alarm in the past.
Indicates no occurrence of alarm 37 (parameter error).
Indicates that the data of parameter No. 1 is faulty.
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Description